I remember many years ago in a shopping mall / office complex in Chicago there was this
restroom on the ground floor, one way mirror glass surrounded this restroom and
the urinals were placed facing the glass wall, so as you're peeing you're looking at people
walking around the mall, sometimes women would come up to the mirror wall to look at
their makeup not knowing you're standing directly in front of them trying to pee !!!
For those who knew, they would stand outside making faces etc ... I remember
men trying to pee, suddenly burst out laughing because of this and they would be
spraying their piss everywhere